package io;

import java.io.*;

public class CopyDemo3 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("image_1.png");
        BufferedInputStream bis =new BufferedInputStream(fis);
        FileOutputStream fos = new FileOutputStream("image_cp2.png");
        BufferedOutputStream bos = new BufferedOutputStream(fos);
        int d;
        while ((d=bis.read())!=-1){
            bos.write(d);
        }
        System.out.println("复制完毕");
        bis.close();
        bos.close();

    }
}
